I was in contact with Ibex Sports in regard to the VDO transmission range and yes the distance is 16 feet on the new C2 and C3 units. They also confirm that two heads will read off of one transmitter. However there is a lot of old stock out there so watch it. Performance indicated recently they still have the shorter range in stock.

I did talk to a LBS owner who tried the new VDOs however and said he had problems with getting obvious transmission glitches. Unrealistic speed readings and such.

We have not bought a stoker wireless computer yet as we are still waiting for our new Santana to come in but think the Garmin might be the way to go.